Court documents reveal a list of items taken during the search. The items include a multicolor comforter, purple shorts, a multicolor Disney character shirt, a Glo Worm toy, a "Cars"-themed blanket, rolls of tape and a tape dispenser.

Live Blog | | | Search Warrant (PDF)

On Wednesday, investigators in white suits walked in and out of the Irwin home all day, carrying bags of evidence and what appeared to be X-ray equipment. They were also seen carrying carpets out of the home.

While some detectives worked inside the home, others were seen behind the home walking shoulder-to-shoulder, digging and raking the back yard for evidence.

Lisa was reported missing early on the morning of Oct. 4.

"Investigative interviews with the people involved revealed conflicting information for clear direction in the investigation," an affidavit supporting the warrant said. "(Deborah) Bradley made the statement she did not initially look for her baby behind the house because she 'was afraid of what she might find.'"

The affidavit also revealed that "On October 17, 2011, an FBI cadaver dog was brought into the residence upon consent of (Jeremy) Irwin and Bradley. The cadaver dog indicated a positive 'hit' for the scent of a deceased human in an area of the floor of Bradley's bedroom near the bed."

The parents have consistently said that they had nothing to do with their daughter's disappearance.